<!DOCTYPE html>
<html lang="zh-cmn-Hans">

<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
  <style>
    * {
      user-select: none;
    }

    html,
    body {
      box-sizing: border-box;
      height: 100vh;
      width: 100vw;
      overflow: hidden;
      margin: 0;
      padding: 0;
      font-size: 14px;
      border-radius: 12px;
    }

    #root {
      height: 100%;
      width: 100%;
      background-color: white;
    }

    .menu {
      margin: 0;
      list-style: none;
      padding: 8px 0;

    }

    .menu .menu-item span {
      display: block;
      padding: 8px 0
    }

    .menu .menu-item :hover {
      background-color: #e5e5e5;
    }
  </style>
</head>

<body>
  <div id="root">
    <aside>
      <ul class="menu">
        <li class="menu-item">
          <span>播放</span>
        </li>
        <li class="menu-item">
          <span>
            上一首
          </span>
        </li>
        <li class="menu-item">
          <span>下一首</span>
        </li>
        <li class="menu-item">
          <span>退出</span>
        </li>
      </ul>
    </aside>
  </div>
</body>

</html>